Struct SharedObject 

pub struct SharedObject {

    pub id: Uuid,
    pub owner_id: Uuid,
    pub building_id: Uuid,
    pub object_category: SharedObjectCategory,
    pub object_name: String,
    pub description: String,
    pub condition: ObjectCondition,
    pub is_available: bool,
    pub rental_credits_per_day: Option<i32>,
    pub deposit_credits: Option<i32>,
    pub borrowing_duration_days: Option<i32>,
    pub current_borrower_id: Option<Uuid>,
    pub borrowed_at: Option<DateTime<Utc>>,
    pub due_back_at: Option<DateTime<Utc>>,
    pub photos: Option<Vec<String>>,
    pub location_details: Option<String>,
    pub usage_instructions: Option<String>,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
}

Shared object for community equipment sharing

Represents an object that a building resident can lend to other members. Integrates with SEL (Local Exchange Trading System) for optional credit-based rental.

Business Rules

• object_name must be 3-100 characters
• description max 1000 characters
• rental_credits_per_day: 0-20 (0 = free, reasonable daily rate)
• deposit_credits: 0-100 (security deposit)
• borrowing_duration_days: 1-90 (max borrowing period)
• Only owner can update/delete object
• Only available objects can be borrowed
• Borrower must return object before borrowing another from same owner

Fields

id: Uuid

owner_id: Uuid

building_id: Uuid

object_category: SharedObjectCategory

object_name: String

description: String

condition: ObjectCondition

is_available: bool

rental_credits_per_day: Option<i32>

Rental rate in SEL credits per day (0 = free, None = not specified)

deposit_credits: Option<i32>

Security deposit in SEL credits (refunded on return)

borrowing_duration_days: Option<i32>

Maximum borrowing duration in days (1-90)

current_borrower_id: Option<Uuid>

Current borrower (if borrowed)

borrowed_at: Option<DateTime<Utc>>

When object was borrowed

due_back_at: Option<DateTime<Utc>>

When object is due back

photos: Option<Vec<String>>

Photo URLs (optional)

location_details: Option<String>

Pickup location details (optional)

usage_instructions: Option<String>

Usage instructions (optional)

created_at: DateTime<Utc>

updated_at: DateTime<Utc>

Implementations

impl SharedObject

pub fn new( owner_id: Uuid, building_id: Uuid, object_category: SharedObjectCategory, object_name: String, description: String, condition: ObjectCondition, is_available: bool, rental_credits_per_day: Option<i32>, deposit_credits: Option<i32>, borrowing_duration_days: Option<i32>, photos: Option<Vec<String>>, location_details: Option<String>, usage_instructions: Option<String>, ) -> Result<Self, String>

Create a new shared object

Validation

• object_name: 3-100 characters
• description: max 1000 characters
• rental_credits_per_day: 0-20 if provided
• deposit_credits: 0-100 if provided
• borrowing_duration_days: 1-90 if provided

pub fn update( &mut self, object_name: Option<String>, description: Option<String>, condition: Option<ObjectCondition>, is_available: Option<bool>, rental_credits_per_day: Option<Option<i32>>, deposit_credits: Option<Option<i32>>, borrowing_duration_days: Option<Option<i32>>, photos: Option<Option<Vec<String>>>, location_details: Option<Option<String>>, usage_instructions: Option<Option<String>>, ) -> Result<(), String>

Update shared object information

Validation

• Same validation rules as new()
• Cannot update if currently borrowed

pub fn mark_available(&mut self) -> Result<(), String>

Mark object as available for borrowing

pub fn mark_unavailable(&mut self)

Mark object as unavailable for borrowing

pub fn borrow( &mut self, borrower_id: Uuid, duration_days: Option<i32>, ) -> Result<(), String>

Borrow object

Validation

• Object must be available
• Borrower cannot be the owner

pub fn return_object(&mut self, returner_id: Uuid) -> Result<(), String>

Return borrowed object

Validation

• Object must be borrowed
• Only borrower can return

pub fn is_borrowed(&self) -> bool

Check if object is currently borrowed

pub fn is_free(&self) -> bool

Check if object is free (no rental fee)

pub fn is_overdue(&self) -> bool

Check if object is overdue

pub fn calculate_total_cost(&self) -> (i32, i32)

Calculate total rental cost for actual borrowing period

Returns (rental_cost, deposit)

pub fn days_overdue(&self) -> i32

Calculate days overdue

Trait Implementations

impl Clone for SharedObject

fn clone(&self) -> SharedObject

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SharedObject

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SharedObject

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SharedObject

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.